2065 lines
83 KiB
JavaScript
2065 lines
83 KiB
JavaScript
/*!
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* https://github.com/es-shims/es5-shim
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* @license es5-shim Copyright 2009-2015 by contributors, MIT License
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* see https://github.com/es-shims/es5-shim/blob/master/LICENSE
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*/
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// vim: ts=4 sts=4 sw=4 expandtab
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// Add semicolon to prevent IIFE from being passed as argument to concatenated code.
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;
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// UMD (Universal Module Definition)
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// see https://github.com/umdjs/umd/blob/master/templates/returnExports.js
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(function (root, factory) {
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'use strict';
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/* global define, exports, module */
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(factory);
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} else if (typeof exports === 'object') {
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// Node. Does not work with strict CommonJS, but
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// only CommonJS-like enviroments that support module.exports,
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// like Node.
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module.exports = factory();
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} else {
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// Browser globals (root is window)
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root.returnExports = factory();
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}
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}(this, function () {
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/**
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* Brings an environment as close to ECMAScript 5 compliance
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* as is possible with the facilities of erstwhile engines.
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*
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* Annotated ES5: http://es5.github.com/ (specific links below)
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* ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
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* Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/
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*/
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// Shortcut to an often accessed properties, in order to avoid multiple
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// dereference that costs universally. This also holds a reference to known-good
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// functions.
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var $Array = Array;
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var ArrayPrototype = $Array.prototype;
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var $Object = Object;
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var ObjectPrototype = $Object.prototype;
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var $Function = Function;
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var FunctionPrototype = $Function.prototype;
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var $String = String;
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var StringPrototype = $String.prototype;
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var $Number = Number;
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var NumberPrototype = $Number.prototype;
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var array_slice = ArrayPrototype.slice;
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var array_splice = ArrayPrototype.splice;
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var array_push = ArrayPrototype.push;
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var array_unshift = ArrayPrototype.unshift;
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var array_concat = ArrayPrototype.concat;
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var array_join = ArrayPrototype.join;
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var call = FunctionPrototype.call;
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var apply = FunctionPrototype.apply;
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var max = Math.max;
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var min = Math.min;
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// Having a toString local variable name breaks in Opera so use to_string.
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var to_string = ObjectPrototype.toString;
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/* global Symbol */
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/* eslint-disable one-var-declaration-per-line, no-redeclare, max-statements-per-line */
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var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';
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var isCallable; /* inlined from https://npmjs.com/is-callable */ var fnToStr = Function.prototype.toString, constructorRegex = /^\s*class /, isES6ClassFn = function isES6ClassFn(value) { try { var fnStr = fnToStr.call(value); var singleStripped = fnStr.replace(/\/\/.*\n/g, ''); var multiStripped = singleStripped.replace(/\/\*[.\s\S]*\*\//g, ''); var spaceStripped = multiStripped.replace(/\n/mg, ' ').replace(/ {2}/g, ' '); return constructorRegex.test(spaceStripped); } catch (e) { return false; /* not a function */ } }, tryFunctionObject = function tryFunctionObject(value) { try { if (isES6ClassFn(value)) { return false; } fnToStr.call(value); return true; } catch (e) { return false; } }, fnClass = '[object Function]', genClass = '[object GeneratorFunction]', isCallable = function isCallable(value) { if (!value) { return false; } if (typeof value !== 'function' && typeof value !== 'object') { return false; } if (hasToStringTag) { return tryFunctionObject(value); } if (isES6ClassFn(value)) { return false; } var strClass = to_string.call(value); return strClass === fnClass || strClass === genClass; };
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var isRegex; /* inlined from https://npmjs.com/is-regex */ var regexExec = RegExp.prototype.exec, tryRegexExec = function tryRegexExec(value) { try { regexExec.call(value); return true; } catch (e) { return false; } }, regexClass = '[object RegExp]'; isRegex = function isRegex(value) { if (typeof value !== 'object') { return false; } return hasToStringTag ? tryRegexExec(value) : to_string.call(value) === regexClass; };
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var isString; /* inlined from https://npmjs.com/is-string */ var strValue = String.prototype.valueOf, tryStringObject = function tryStringObject(value) { try { strValue.call(value); return true; } catch (e) { return false; } }, stringClass = '[object String]'; isString = function isString(value) { if (typeof value === 'string') { return true; } if (typeof value !== 'object') { return false; } return hasToStringTag ? tryStringObject(value) : to_string.call(value) === stringClass; };
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/* eslint-enable one-var-declaration-per-line, no-redeclare, max-statements-per-line */
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/* inlined from http://npmjs.com/define-properties */
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var supportsDescriptors = $Object.defineProperty && (function () {
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try {
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var obj = {};
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$Object.defineProperty(obj, 'x', { enumerable: false, value: obj });
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for (var _ in obj) { // jscs:ignore disallowUnusedVariables
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return false;
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}
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return obj.x === obj;
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} catch (e) { /* this is ES3 */
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return false;
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}
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}());
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var defineProperties = (function (has) {
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// Define configurable, writable, and non-enumerable props
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// if they don't exist.
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var defineProperty;
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if (supportsDescriptors) {
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defineProperty = function (object, name, method, forceAssign) {
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if (!forceAssign && (name in object)) {
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return;
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}
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$Object.defineProperty(object, name, {
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configurable: true,
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enumerable: false,
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writable: true,
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value: method
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});
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};
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} else {
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defineProperty = function (object, name, method, forceAssign) {
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if (!forceAssign && (name in object)) {
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return;
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}
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object[name] = method;
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};
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}
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return function defineProperties(object, map, forceAssign) {
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for (var name in map) {
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if (has.call(map, name)) {
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defineProperty(object, name, map[name], forceAssign);
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}
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}
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};
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}(ObjectPrototype.hasOwnProperty));
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//
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// Util
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// ======
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//
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/* replaceable with https://npmjs.com/package/es-abstract /helpers/isPrimitive */
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var isPrimitive = function isPrimitive(input) {
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var type = typeof input;
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return input === null || (type !== 'object' && type !== 'function');
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};
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var isActualNaN = $Number.isNaN || function isActualNaN(x) {
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return x !== x;
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};
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var ES = {
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// ES5 9.4
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// http://es5.github.com/#x9.4
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// http://jsperf.com/to-integer
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/* replaceable with https://npmjs.com/package/es-abstract ES5.ToInteger */
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ToInteger: function ToInteger(num) {
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var n = +num;
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if (isActualNaN(n)) {
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n = 0;
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} else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
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n = (n > 0 || -1) * Math.floor(Math.abs(n));
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}
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return n;
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},
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/* replaceable with https://npmjs.com/package/es-abstract ES5.ToPrimitive */
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ToPrimitive: function ToPrimitive(input) {
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var val, valueOf, toStr;
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if (isPrimitive(input)) {
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return input;
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}
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valueOf = input.valueOf;
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if (isCallable(valueOf)) {
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val = valueOf.call(input);
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if (isPrimitive(val)) {
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return val;
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}
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}
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toStr = input.toString;
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if (isCallable(toStr)) {
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val = toStr.call(input);
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if (isPrimitive(val)) {
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return val;
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}
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}
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throw new TypeError();
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},
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// ES5 9.9
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// http://es5.github.com/#x9.9
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/* replaceable with https://npmjs.com/package/es-abstract ES5.ToObject */
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ToObject: function (o) {
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if (o == null) { // this matches both null and undefined
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throw new TypeError("can't convert " + o + ' to object');
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}
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return $Object(o);
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},
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/* replaceable with https://npmjs.com/package/es-abstract ES5.ToUint32 */
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ToUint32: function ToUint32(x) {
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return x >>> 0;
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}
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};
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//
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// Function
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// ========
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//
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// ES-5 15.3.4.5
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// http://es5.github.com/#x15.3.4.5
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var Empty = function Empty() {};
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defineProperties(FunctionPrototype, {
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bind: function bind(that) { // .length is 1
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// 1. Let Target be the this value.
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var target = this;
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// 2. If IsCallable(Target) is false, throw a TypeError exception.
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if (!isCallable(target)) {
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throw new TypeError('Function.prototype.bind called on incompatible ' + target);
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}
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// 3. Let A be a new (possibly empty) internal list of all of the
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// argument values provided after thisArg (arg1, arg2 etc), in order.
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// XXX slicedArgs will stand in for "A" if used
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var args = array_slice.call(arguments, 1); // for normal call
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// 4. Let F be a new native ECMAScript object.
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// 11. Set the [[Prototype]] internal property of F to the standard
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// built-in Function prototype object as specified in 15.3.3.1.
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// 12. Set the [[Call]] internal property of F as described in
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// 15.3.4.5.1.
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// 13. Set the [[Construct]] internal property of F as described in
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// 15.3.4.5.2.
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// 14. Set the [[HasInstance]] internal property of F as described in
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// 15.3.4.5.3.
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var bound;
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var binder = function () {
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if (this instanceof bound) {
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// 15.3.4.5.2 [[Construct]]
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// When the [[Construct]] internal method of a function object,
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// F that was created using the bind function is called with a
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// list of arguments ExtraArgs, the following steps are taken:
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// 1. Let target be the value of F's [[TargetFunction]]
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// internal property.
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// 2. If target has no [[Construct]] internal method, a
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// TypeError exception is thrown.
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// 3. Let boundArgs be the value of F's [[BoundArgs]] internal
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// property.
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// 4. Let args be a new list containing the same values as the
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// list boundArgs in the same order followed by the same
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// values as the list ExtraArgs in the same order.
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// 5. Return the result of calling the [[Construct]] internal
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// method of target providing args as the arguments.
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var result = apply.call(
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target,
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this,
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array_concat.call(args, array_slice.call(arguments))
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);
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if ($Object(result) === result) {
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return result;
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}
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return this;
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} else {
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// 15.3.4.5.1 [[Call]]
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// When the [[Call]] internal method of a function object, F,
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// which was created using the bind function is called with a
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// this value and a list of arguments ExtraArgs, the following
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// steps are taken:
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// 1. Let boundArgs be the value of F's [[BoundArgs]] internal
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// property.
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// 2. Let boundThis be the value of F's [[BoundThis]] internal
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// property.
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// 3. Let target be the value of F's [[TargetFunction]] internal
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// property.
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// 4. Let args be a new list containing the same values as the
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// list boundArgs in the same order followed by the same
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// values as the list ExtraArgs in the same order.
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// 5. Return the result of calling the [[Call]] internal method
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// of target providing boundThis as the this value and
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// providing args as the arguments.
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// equiv: target.call(this, ...boundArgs, ...args)
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return apply.call(
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target,
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that,
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array_concat.call(args, array_slice.call(arguments))
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);
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}
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};
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// 15. If the [[Class]] internal property of Target is "Function", then
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// a. Let L be the length property of Target minus the length of A.
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// b. Set the length own property of F to either 0 or L, whichever is
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// larger.
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// 16. Else set the length own property of F to 0.
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var boundLength = max(0, target.length - args.length);
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// 17. Set the attributes of the length own property of F to the values
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// specified in 15.3.5.1.
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var boundArgs = [];
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for (var i = 0; i < boundLength; i++) {
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array_push.call(boundArgs, '$' + i);
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}
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// XXX Build a dynamic function with desired amount of arguments is the only
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// way to set the length property of a function.
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// In environments where Content Security Policies enabled (Chrome extensions,
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// for ex.) all use of eval or Function costructor throws an exception.
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// However in all of these environments Function.prototype.bind exists
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// and so this code will never be executed.
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bound = $Function('binder', 'return function (' + array_join.call(boundArgs, ',') + '){ return binder.apply(this, arguments); }')(binder);
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if (target.prototype) {
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Empty.prototype = target.prototype;
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bound.prototype = new Empty();
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// Clean up dangling references.
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Empty.prototype = null;
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}
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// TODO
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// 18. Set the [[Extensible]] internal property of F to true.
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// TODO
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// 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
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// 20. Call the [[DefineOwnProperty]] internal method of F with
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// arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
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// thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
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// false.
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// 21. Call the [[DefineOwnProperty]] internal method of F with
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// arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
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// [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
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// and false.
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// TODO
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// NOTE Function objects created using Function.prototype.bind do not
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// have a prototype property or the [[Code]], [[FormalParameters]], and
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// [[Scope]] internal properties.
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// XXX can't delete prototype in pure-js.
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// 22. Return F.
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return bound;
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}
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});
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// _Please note: Shortcuts are defined after `Function.prototype.bind` as we
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// use it in defining shortcuts.
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var owns = call.bind(ObjectPrototype.hasOwnProperty);
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var toStr = call.bind(ObjectPrototype.toString);
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var arraySlice = call.bind(array_slice);
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var arraySliceApply = apply.bind(array_slice);
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var strSlice = call.bind(StringPrototype.slice);
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var strSplit = call.bind(StringPrototype.split);
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var strIndexOf = call.bind(StringPrototype.indexOf);
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var pushCall = call.bind(array_push);
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var isEnum = call.bind(ObjectPrototype.propertyIsEnumerable);
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var arraySort = call.bind(ArrayPrototype.sort);
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//
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// Array
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// =====
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//
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var isArray = $Array.isArray || function isArray(obj) {
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return toStr(obj) === '[object Array]';
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};
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// ES5 15.4.4.12
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// http://es5.github.com/#x15.4.4.13
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// Return len+argCount.
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// [bugfix, ielt8]
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// IE < 8 bug: [].unshift(0) === undefined but should be "1"
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var hasUnshiftReturnValueBug = [].unshift(0) !== 1;
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defineProperties(ArrayPrototype, {
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unshift: function () {
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array_unshift.apply(this, arguments);
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return this.length;
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}
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}, hasUnshiftReturnValueBug);
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// ES5 15.4.3.2
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// http://es5.github.com/#x15.4.3.2
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// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray
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defineProperties($Array, { isArray: isArray });
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// The IsCallable() check in the Array functions
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|
// has been replaced with a strict check on the
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// internal class of the object to trap cases where
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// the provided function was actually a regular
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// expression literal, which in V8 and
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// JavaScriptCore is a typeof "function". Only in
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// V8 are regular expression literals permitted as
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// reduce parameters, so it is desirable in the
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// general case for the shim to match the more
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// strict and common behavior of rejecting regular
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// expressions.
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// ES5 15.4.4.18
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// http://es5.github.com/#x15.4.4.18
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// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach
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|
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// Check failure of by-index access of string characters (IE < 9)
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|
// and failure of `0 in boxedString` (Rhino)
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var boxedString = $Object('a');
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var splitString = boxedString[0] !== 'a' || !(0 in boxedString);
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var properlyBoxesContext = function properlyBoxed(method) {
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|
// Check node 0.6.21 bug where third parameter is not boxed
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|
var properlyBoxesNonStrict = true;
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var properlyBoxesStrict = true;
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var threwException = false;
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if (method) {
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try {
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method.call('foo', function (_, __, context) {
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if (typeof context !== 'object') {
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properlyBoxesNonStrict = false;
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}
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});
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method.call([1], function () {
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'use strict';
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properlyBoxesStrict = typeof this === 'string';
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}, 'x');
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} catch (e) {
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threwException = true;
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}
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}
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return !!method && !threwException && properlyBoxesNonStrict && properlyBoxesStrict;
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};
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|
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defineProperties(ArrayPrototype, {
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forEach: function forEach(callbackfn/*, thisArg*/) {
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|
var object = ES.ToObject(this);
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var self = splitString && isString(this) ? strSplit(this, '') : object;
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var i = -1;
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var length = ES.ToUint32(self.length);
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var T;
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if (arguments.length > 1) {
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T = arguments[1];
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}
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|
|
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// If no callback function or if callback is not a callable function
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|
if (!isCallable(callbackfn)) {
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throw new TypeError('Array.prototype.forEach callback must be a function');
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}
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while (++i < length) {
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if (i in self) {
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|
// Invoke the callback function with call, passing arguments:
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// context, property value, property key, thisArg object
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|
if (typeof T === 'undefined') {
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callbackfn(self[i], i, object);
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} else {
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callbackfn.call(T, self[i], i, object);
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}
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}
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}
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}
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}, !properlyBoxesContext(ArrayPrototype.forEach));
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|
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// ES5 15.4.4.19
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// http://es5.github.com/#x15.4.4.19
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|
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map
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|
defineProperties(ArrayPrototype, {
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|
map: function map(callbackfn/*, thisArg*/) {
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var object = ES.ToObject(this);
|
|
var self = splitString && isString(this) ? strSplit(this, '') : object;
|
|
var length = ES.ToUint32(self.length);
|
|
var result = $Array(length);
|
|
var T;
|
|
if (arguments.length > 1) {
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T = arguments[1];
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}
|
|
|
|
// If no callback function or if callback is not a callable function
|
|
if (!isCallable(callbackfn)) {
|
|
throw new TypeError('Array.prototype.map callback must be a function');
|
|
}
|
|
|
|
for (var i = 0; i < length; i++) {
|
|
if (i in self) {
|
|
if (typeof T === 'undefined') {
|
|
result[i] = callbackfn(self[i], i, object);
|
|
} else {
|
|
result[i] = callbackfn.call(T, self[i], i, object);
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
}, !properlyBoxesContext(ArrayPrototype.map));
|
|
|
|
// ES5 15.4.4.20
|
|
// http://es5.github.com/#x15.4.4.20
|
|
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter
|
|
defineProperties(ArrayPrototype, {
|
|
filter: function filter(callbackfn/*, thisArg*/) {
|
|
var object = ES.ToObject(this);
|
|
var self = splitString && isString(this) ? strSplit(this, '') : object;
|
|
var length = ES.ToUint32(self.length);
|
|
var result = [];
|
|
var value;
|
|
var T;
|
|
if (arguments.length > 1) {
|
|
T = arguments[1];
|
|
}
|
|
|
|
// If no callback function or if callback is not a callable function
|
|
if (!isCallable(callbackfn)) {
|
|
throw new TypeError('Array.prototype.filter callback must be a function');
|
|
}
|
|
|
|
for (var i = 0; i < length; i++) {
|
|
if (i in self) {
|
|
value = self[i];
|
|
if (typeof T === 'undefined' ? callbackfn(value, i, object) : callbackfn.call(T, value, i, object)) {
|
|
pushCall(result, value);
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
}, !properlyBoxesContext(ArrayPrototype.filter));
|
|
|
|
// ES5 15.4.4.16
|
|
// http://es5.github.com/#x15.4.4.16
|
|
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every
|
|
defineProperties(ArrayPrototype, {
|
|
every: function every(callbackfn/*, thisArg*/) {
|
|
var object = ES.ToObject(this);
|
|
var self = splitString && isString(this) ? strSplit(this, '') : object;
|
|
var length = ES.ToUint32(self.length);
|
|
var T;
|
|
if (arguments.length > 1) {
|
|
T = arguments[1];
|
|
}
|
|
|
|
// If no callback function or if callback is not a callable function
|
|
if (!isCallable(callbackfn)) {
|
|
throw new TypeError('Array.prototype.every callback must be a function');
|
|
}
|
|
|
|
for (var i = 0; i < length; i++) {
|
|
if (i in self && !(typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
}, !properlyBoxesContext(ArrayPrototype.every));
|
|
|
|
// ES5 15.4.4.17
|
|
// http://es5.github.com/#x15.4.4.17
|
|
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some
|
|
defineProperties(ArrayPrototype, {
|
|
some: function some(callbackfn/*, thisArg */) {
|
|
var object = ES.ToObject(this);
|
|
var self = splitString && isString(this) ? strSplit(this, '') : object;
|
|
var length = ES.ToUint32(self.length);
|
|
var T;
|
|
if (arguments.length > 1) {
|
|
T = arguments[1];
|
|
}
|
|
|
|
// If no callback function or if callback is not a callable function
|
|
if (!isCallable(callbackfn)) {
|
|
throw new TypeError('Array.prototype.some callback must be a function');
|
|
}
|
|
|
|
for (var i = 0; i < length; i++) {
|
|
if (i in self && (typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}, !properlyBoxesContext(ArrayPrototype.some));
|
|
|
|
// ES5 15.4.4.21
|
|
// http://es5.github.com/#x15.4.4.21
|
|
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce
|
|
var reduceCoercesToObject = false;
|
|
if (ArrayPrototype.reduce) {
|
|
reduceCoercesToObject = typeof ArrayPrototype.reduce.call('es5', function (_, __, ___, list) {
|
|
return list;
|
|
}) === 'object';
|
|
}
|
|
defineProperties(ArrayPrototype, {
|
|
reduce: function reduce(callbackfn/*, initialValue*/) {
|
|
var object = ES.ToObject(this);
|
|
var self = splitString && isString(this) ? strSplit(this, '') : object;
|
|
var length = ES.ToUint32(self.length);
|
|
|
|
// If no callback function or if callback is not a callable function
|
|
if (!isCallable(callbackfn)) {
|
|
throw new TypeError('Array.prototype.reduce callback must be a function');
|
|
}
|
|
|
|
// no value to return if no initial value and an empty array
|
|
if (length === 0 && arguments.length === 1) {
|
|
throw new TypeError('reduce of empty array with no initial value');
|
|
}
|
|
|
|
var i = 0;
|
|
var result;
|
|
if (arguments.length >= 2) {
|
|
result = arguments[1];
|
|
} else {
|
|
do {
|
|
if (i in self) {
|
|
result = self[i++];
|
|
break;
|
|
}
|
|
|
|
// if array contains no values, no initial value to return
|
|
if (++i >= length) {
|
|
throw new TypeError('reduce of empty array with no initial value');
|
|
}
|
|
} while (true);
|
|
}
|
|
|
|
for (; i < length; i++) {
|
|
if (i in self) {
|
|
result = callbackfn(result, self[i], i, object);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
}, !reduceCoercesToObject);
|
|
|
|
// ES5 15.4.4.22
|
|
// http://es5.github.com/#x15.4.4.22
|
|
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight
|
|
var reduceRightCoercesToObject = false;
|
|
if (ArrayPrototype.reduceRight) {
|
|
reduceRightCoercesToObject = typeof ArrayPrototype.reduceRight.call('es5', function (_, __, ___, list) {
|
|
return list;
|
|
}) === 'object';
|
|
}
|
|
defineProperties(ArrayPrototype, {
|
|
reduceRight: function reduceRight(callbackfn/*, initial*/) {
|
|
var object = ES.ToObject(this);
|
|
var self = splitString && isString(this) ? strSplit(this, '') : object;
|
|
var length = ES.ToUint32(self.length);
|
|
|
|
// If no callback function or if callback is not a callable function
|
|
if (!isCallable(callbackfn)) {
|
|
throw new TypeError('Array.prototype.reduceRight callback must be a function');
|
|
}
|
|
|
|
// no value to return if no initial value, empty array
|
|
if (length === 0 && arguments.length === 1) {
|
|
throw new TypeError('reduceRight of empty array with no initial value');
|
|
}
|
|
|
|
var result;
|
|
var i = length - 1;
|
|
if (arguments.length >= 2) {
|
|
result = arguments[1];
|
|
} else {
|
|
do {
|
|
if (i in self) {
|
|
result = self[i--];
|
|
break;
|
|
}
|
|
|
|
// if array contains no values, no initial value to return
|
|
if (--i < 0) {
|
|
throw new TypeError('reduceRight of empty array with no initial value');
|
|
}
|
|
} while (true);
|
|
}
|
|
|
|
if (i < 0) {
|
|
return result;
|
|
}
|
|
|
|
do {
|
|
if (i in self) {
|
|
result = callbackfn(result, self[i], i, object);
|
|
}
|
|
} while (i--);
|
|
|
|
return result;
|
|
}
|
|
}, !reduceRightCoercesToObject);
|
|
|
|
// ES5 15.4.4.14
|
|
// http://es5.github.com/#x15.4.4.14
|
|
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf
|
|
var hasFirefox2IndexOfBug = ArrayPrototype.indexOf && [0, 1].indexOf(1, 2) !== -1;
|
|
defineProperties(ArrayPrototype, {
|
|
indexOf: function indexOf(searchElement/*, fromIndex */) {
|
|
var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this);
|
|
var length = ES.ToUint32(self.length);
|
|
|
|
if (length === 0) {
|
|
return -1;
|
|
}
|
|
|
|
var i = 0;
|
|
if (arguments.length > 1) {
|
|
i = ES.ToInteger(arguments[1]);
|
|
}
|
|
|
|
// handle negative indices
|
|
i = i >= 0 ? i : max(0, length + i);
|
|
for (; i < length; i++) {
|
|
if (i in self && self[i] === searchElement) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
}, hasFirefox2IndexOfBug);
|
|
|
|
// ES5 15.4.4.15
|
|
// http://es5.github.com/#x15.4.4.15
|
|
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/lastIndexOf
|
|
var hasFirefox2LastIndexOfBug = ArrayPrototype.lastIndexOf && [0, 1].lastIndexOf(0, -3) !== -1;
|
|
defineProperties(ArrayPrototype, {
|
|
lastIndexOf: function lastIndexOf(searchElement/*, fromIndex */) {
|
|
var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this);
|
|
var length = ES.ToUint32(self.length);
|
|
|
|
if (length === 0) {
|
|
return -1;
|
|
}
|
|
var i = length - 1;
|
|
if (arguments.length > 1) {
|
|
i = min(i, ES.ToInteger(arguments[1]));
|
|
}
|
|
// handle negative indices
|
|
i = i >= 0 ? i : length - Math.abs(i);
|
|
for (; i >= 0; i--) {
|
|
if (i in self && searchElement === self[i]) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
}, hasFirefox2LastIndexOfBug);
|
|
|
|
// ES5 15.4.4.12
|
|
// http://es5.github.com/#x15.4.4.12
|
|
var spliceNoopReturnsEmptyArray = (function () {
|
|
var a = [1, 2];
|
|
var result = a.splice();
|
|
return a.length === 2 && isArray(result) && result.length === 0;
|
|
}());
|
|
defineProperties(ArrayPrototype, {
|
|
// Safari 5.0 bug where .splice() returns undefined
|
|
splice: function splice(start, deleteCount) {
|
|
if (arguments.length === 0) {
|
|
return [];
|
|
} else {
|
|
return array_splice.apply(this, arguments);
|
|
}
|
|
}
|
|
}, !spliceNoopReturnsEmptyArray);
|
|
|
|
var spliceWorksWithEmptyObject = (function () {
|
|
var obj = {};
|
|
ArrayPrototype.splice.call(obj, 0, 0, 1);
|
|
return obj.length === 1;
|
|
}());
|
|
defineProperties(ArrayPrototype, {
|
|
splice: function splice(start, deleteCount) {
|
|
if (arguments.length === 0) {
|
|
return [];
|
|
}
|
|
var args = arguments;
|
|
this.length = max(ES.ToInteger(this.length), 0);
|
|
if (arguments.length > 0 && typeof deleteCount !== 'number') {
|
|
args = arraySlice(arguments);
|
|
if (args.length < 2) {
|
|
pushCall(args, this.length - start);
|
|
} else {
|
|
args[1] = ES.ToInteger(deleteCount);
|
|
}
|
|
}
|
|
return array_splice.apply(this, args);
|
|
}
|
|
}, !spliceWorksWithEmptyObject);
|
|
var spliceWorksWithLargeSparseArrays = (function () {
|
|
// Per https://github.com/es-shims/es5-shim/issues/295
|
|
// Safari 7/8 breaks with sparse arrays of size 1e5 or greater
|
|
var arr = new $Array(1e5);
|
|
// note: the index MUST be 8 or larger or the test will false pass
|
|
arr[8] = 'x';
|
|
arr.splice(1, 1);
|
|
// note: this test must be defined *after* the indexOf shim
|
|
// per https://github.com/es-shims/es5-shim/issues/313
|
|
return arr.indexOf('x') === 7;
|
|
}());
|
|
var spliceWorksWithSmallSparseArrays = (function () {
|
|
// Per https://github.com/es-shims/es5-shim/issues/295
|
|
// Opera 12.15 breaks on this, no idea why.
|
|
var n = 256;
|
|
var arr = [];
|
|
arr[n] = 'a';
|
|
arr.splice(n + 1, 0, 'b');
|
|
return arr[n] === 'a';
|
|
}());
|
|
defineProperties(ArrayPrototype, {
|
|
splice: function splice(start, deleteCount) {
|
|
var O = ES.ToObject(this);
|
|
var A = [];
|
|
var len = ES.ToUint32(O.length);
|
|
var relativeStart = ES.ToInteger(start);
|
|
var actualStart = relativeStart < 0 ? max((len + relativeStart), 0) : min(relativeStart, len);
|
|
var actualDeleteCount = min(max(ES.ToInteger(deleteCount), 0), len - actualStart);
|
|
|
|
var k = 0;
|
|
var from;
|
|
while (k < actualDeleteCount) {
|
|
from = $String(actualStart + k);
|
|
if (owns(O, from)) {
|
|
A[k] = O[from];
|
|
}
|
|
k += 1;
|
|
}
|
|
|
|
var items = arraySlice(arguments, 2);
|
|
var itemCount = items.length;
|
|
var to;
|
|
if (itemCount < actualDeleteCount) {
|
|
k = actualStart;
|
|
var maxK = len - actualDeleteCount;
|
|
while (k < maxK) {
|
|
from = $String(k + actualDeleteCount);
|
|
to = $String(k + itemCount);
|
|
if (owns(O, from)) {
|
|
O[to] = O[from];
|
|
} else {
|
|
delete O[to];
|
|
}
|
|
k += 1;
|
|
}
|
|
k = len;
|
|
var minK = len - actualDeleteCount + itemCount;
|
|
while (k > minK) {
|
|
delete O[k - 1];
|
|
k -= 1;
|
|
}
|
|
} else if (itemCount > actualDeleteCount) {
|
|
k = len - actualDeleteCount;
|
|
while (k > actualStart) {
|
|
from = $String(k + actualDeleteCount - 1);
|
|
to = $String(k + itemCount - 1);
|
|
if (owns(O, from)) {
|
|
O[to] = O[from];
|
|
} else {
|
|
delete O[to];
|
|
}
|
|
k -= 1;
|
|
}
|
|
}
|
|
k = actualStart;
|
|
for (var i = 0; i < items.length; ++i) {
|
|
O[k] = items[i];
|
|
k += 1;
|
|
}
|
|
O.length = len - actualDeleteCount + itemCount;
|
|
|
|
return A;
|
|
}
|
|
}, !spliceWorksWithLargeSparseArrays || !spliceWorksWithSmallSparseArrays);
|
|
|
|
var originalJoin = ArrayPrototype.join;
|
|
var hasStringJoinBug;
|
|
try {
|
|
hasStringJoinBug = Array.prototype.join.call('123', ',') !== '1,2,3';
|
|
} catch (e) {
|
|
hasStringJoinBug = true;
|
|
}
|
|
if (hasStringJoinBug) {
|
|
defineProperties(ArrayPrototype, {
|
|
join: function join(separator) {
|
|
var sep = typeof separator === 'undefined' ? ',' : separator;
|
|
return originalJoin.call(isString(this) ? strSplit(this, '') : this, sep);
|
|
}
|
|
}, hasStringJoinBug);
|
|
}
|
|
|
|
var hasJoinUndefinedBug = [1, 2].join(undefined) !== '1,2';
|
|
if (hasJoinUndefinedBug) {
|
|
defineProperties(ArrayPrototype, {
|
|
join: function join(separator) {
|
|
var sep = typeof separator === 'undefined' ? ',' : separator;
|
|
return originalJoin.call(this, sep);
|
|
}
|
|
}, hasJoinUndefinedBug);
|
|
}
|
|
|
|
var pushShim = function push(item) {
|
|
var O = ES.ToObject(this);
|
|
var n = ES.ToUint32(O.length);
|
|
var i = 0;
|
|
while (i < arguments.length) {
|
|
O[n + i] = arguments[i];
|
|
i += 1;
|
|
}
|
|
O.length = n + i;
|
|
return n + i;
|
|
};
|
|
|
|
var pushIsNotGeneric = (function () {
|
|
var obj = {};
|
|
var result = Array.prototype.push.call(obj, undefined);
|
|
return result !== 1 || obj.length !== 1 || typeof obj[0] !== 'undefined' || !owns(obj, 0);
|
|
}());
|
|
defineProperties(ArrayPrototype, {
|
|
push: function push(item) {
|
|
if (isArray(this)) {
|
|
return array_push.apply(this, arguments);
|
|
}
|
|
return pushShim.apply(this, arguments);
|
|
}
|
|
}, pushIsNotGeneric);
|
|
|
|
// This fixes a very weird bug in Opera 10.6 when pushing `undefined
|
|
var pushUndefinedIsWeird = (function () {
|
|
var arr = [];
|
|
var result = arr.push(undefined);
|
|
return result !== 1 || arr.length !== 1 || typeof arr[0] !== 'undefined' || !owns(arr, 0);
|
|
}());
|
|
defineProperties(ArrayPrototype, { push: pushShim }, pushUndefinedIsWeird);
|
|
|
|
// ES5 15.2.3.14
|
|
// http://es5.github.io/#x15.4.4.10
|
|
// Fix boxed string bug
|
|
defineProperties(ArrayPrototype, {
|
|
slice: function (start, end) {
|
|
var arr = isString(this) ? strSplit(this, '') : this;
|
|
return arraySliceApply(arr, arguments);
|
|
}
|
|
}, splitString);
|
|
|
|
var sortIgnoresNonFunctions = (function () {
|
|
try {
|
|
[1, 2].sort(null);
|
|
[1, 2].sort({});
|
|
return true;
|
|
} catch (e) {}
|
|
return false;
|
|
}());
|
|
var sortThrowsOnRegex = (function () {
|
|
// this is a problem in Firefox 4, in which `typeof /a/ === 'function'`
|
|
try {
|
|
[1, 2].sort(/a/);
|
|
return false;
|
|
} catch (e) {}
|
|
return true;
|
|
}());
|
|
var sortIgnoresUndefined = (function () {
|
|
// applies in IE 8, for one.
|
|
try {
|
|
[1, 2].sort(undefined);
|
|
return true;
|
|
} catch (e) {}
|
|
return false;
|
|
}());
|
|
defineProperties(ArrayPrototype, {
|
|
sort: function sort(compareFn) {
|
|
if (typeof compareFn === 'undefined') {
|
|
return arraySort(this);
|
|
}
|
|
if (!isCallable(compareFn)) {
|
|
throw new TypeError('Array.prototype.sort callback must be a function');
|
|
}
|
|
return arraySort(this, compareFn);
|
|
}
|
|
}, sortIgnoresNonFunctions || !sortIgnoresUndefined || !sortThrowsOnRegex);
|
|
|
|
//
|
|
// Object
|
|
// ======
|
|
//
|
|
|
|
// ES5 15.2.3.14
|
|
// http://es5.github.com/#x15.2.3.14
|
|
|
|
// http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation
|
|
var hasDontEnumBug = !isEnum({ 'toString': null }, 'toString');
|
|
var hasProtoEnumBug = isEnum(function () {}, 'prototype');
|
|
var hasStringEnumBug = !owns('x', '0');
|
|
var equalsConstructorPrototype = function (o) {
|
|
var ctor = o.constructor;
|
|
return ctor && ctor.prototype === o;
|
|
};
|
|
var blacklistedKeys = {
|
|
$window: true,
|
|
$console: true,
|
|
$parent: true,
|
|
$self: true,
|
|
$frame: true,
|
|
$frames: true,
|
|
$frameElement: true,
|
|
$webkitIndexedDB: true,
|
|
$webkitStorageInfo: true,
|
|
$external: true
|
|
};
|
|
var hasAutomationEqualityBug = (function () {
|
|
/* globals window */
|
|
if (typeof window === 'undefined') {
|
|
return false;
|
|
}
|
|
for (var k in window) {
|
|
try {
|
|
if (!blacklistedKeys['$' + k] && owns(window, k) && window[k] !== null && typeof window[k] === 'object') {
|
|
equalsConstructorPrototype(window[k]);
|
|
}
|
|
} catch (e) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}());
|
|
var equalsConstructorPrototypeIfNotBuggy = function (object) {
|
|
if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
|
|
return equalsConstructorPrototype(object);
|
|
}
|
|
try {
|
|
return equalsConstructorPrototype(object);
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
};
|
|
var dontEnums = [
|
|
'toString',
|
|
'toLocaleString',
|
|
'valueOf',
|
|
'hasOwnProperty',
|
|
'isPrototypeOf',
|
|
'propertyIsEnumerable',
|
|
'constructor'
|
|
];
|
|
var dontEnumsLength = dontEnums.length;
|
|
|
|
// taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
|
|
// can be replaced with require('is-arguments') if we ever use a build process instead
|
|
var isStandardArguments = function isArguments(value) {
|
|
return toStr(value) === '[object Arguments]';
|
|
};
|
|
var isLegacyArguments = function isArguments(value) {
|
|
return value !== null &&
|
|
typeof value === 'object' &&
|
|
typeof value.length === 'number' &&
|
|
value.length >= 0 &&
|
|
!isArray(value) &&
|
|
isCallable(value.callee);
|
|
};
|
|
var isArguments = isStandardArguments(arguments) ? isStandardArguments : isLegacyArguments;
|
|
|
|
defineProperties($Object, {
|
|
keys: function keys(object) {
|
|
var isFn = isCallable(object);
|
|
var isArgs = isArguments(object);
|
|
var isObject = object !== null && typeof object === 'object';
|
|
var isStr = isObject && isString(object);
|
|
|
|
if (!isObject && !isFn && !isArgs) {
|
|
throw new TypeError('Object.keys called on a non-object');
|
|
}
|
|
|
|
var theKeys = [];
|
|
var skipProto = hasProtoEnumBug && isFn;
|
|
if ((isStr && hasStringEnumBug) || isArgs) {
|
|
for (var i = 0; i < object.length; ++i) {
|
|
pushCall(theKeys, $String(i));
|
|
}
|
|
}
|
|
|
|
if (!isArgs) {
|
|
for (var name in object) {
|
|
if (!(skipProto && name === 'prototype') && owns(object, name)) {
|
|
pushCall(theKeys, $String(name));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hasDontEnumBug) {
|
|
var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
|
|
for (var j = 0; j < dontEnumsLength; j++) {
|
|
var dontEnum = dontEnums[j];
|
|
if (!(skipConstructor && dontEnum === 'constructor') && owns(object, dontEnum)) {
|
|
pushCall(theKeys, dontEnum);
|
|
}
|
|
}
|
|
}
|
|
return theKeys;
|
|
}
|
|
});
|
|
|
|
var keysWorksWithArguments = $Object.keys && (function () {
|
|
// Safari 5.0 bug
|
|
return $Object.keys(arguments).length === 2;
|
|
}(1, 2));
|
|
var keysHasArgumentsLengthBug = $Object.keys && (function () {
|
|
var argKeys = $Object.keys(arguments);
|
|
return arguments.length !== 1 || argKeys.length !== 1 || argKeys[0] !== 1;
|
|
}(1));
|
|
var originalKeys = $Object.keys;
|
|
defineProperties($Object, {
|
|
keys: function keys(object) {
|
|
if (isArguments(object)) {
|
|
return originalKeys(arraySlice(object));
|
|
} else {
|
|
return originalKeys(object);
|
|
}
|
|
}
|
|
}, !keysWorksWithArguments || keysHasArgumentsLengthBug);
|
|
|
|
//
|
|
// Date
|
|
// ====
|
|
//
|
|
|
|
var hasNegativeMonthYearBug = new Date(-3509827329600292).getUTCMonth() !== 0;
|
|
var aNegativeTestDate = new Date(-1509842289600292);
|
|
var aPositiveTestDate = new Date(1449662400000);
|
|
var hasToUTCStringFormatBug = aNegativeTestDate.toUTCString() !== 'Mon, 01 Jan -45875 11:59:59 GMT';
|
|
var hasToDateStringFormatBug;
|
|
var hasToStringFormatBug;
|
|
var timeZoneOffset = aNegativeTestDate.getTimezoneOffset();
|
|
if (timeZoneOffset < -720) {
|
|
hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Tue Jan 02 -45875';
|
|
hasToStringFormatBug = !(/^Thu Dec 10 2015 \d\d:\d\d:\d\d GMT[-\+]\d\d\d\d(?: |$)/).test(aPositiveTestDate.toString());
|
|
} else {
|
|
hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Mon Jan 01 -45875';
|
|
hasToStringFormatBug = !(/^Wed Dec 09 2015 \d\d:\d\d:\d\d GMT[-\+]\d\d\d\d(?: |$)/).test(aPositiveTestDate.toString());
|
|
}
|
|
|
|
var originalGetFullYear = call.bind(Date.prototype.getFullYear);
|
|
var originalGetMonth = call.bind(Date.prototype.getMonth);
|
|
var originalGetDate = call.bind(Date.prototype.getDate);
|
|
var originalGetUTCFullYear = call.bind(Date.prototype.getUTCFullYear);
|
|
var originalGetUTCMonth = call.bind(Date.prototype.getUTCMonth);
|
|
var originalGetUTCDate = call.bind(Date.prototype.getUTCDate);
|
|
var originalGetUTCDay = call.bind(Date.prototype.getUTCDay);
|
|
var originalGetUTCHours = call.bind(Date.prototype.getUTCHours);
|
|
var originalGetUTCMinutes = call.bind(Date.prototype.getUTCMinutes);
|
|
var originalGetUTCSeconds = call.bind(Date.prototype.getUTCSeconds);
|
|
var originalGetUTCMilliseconds = call.bind(Date.prototype.getUTCMilliseconds);
|
|
var dayName = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
|
|
var monthName = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
|
|
var daysInMonth = function daysInMonth(month, year) {
|
|
return originalGetDate(new Date(year, month, 0));
|
|
};
|
|
|
|
defineProperties(Date.prototype, {
|
|
getFullYear: function getFullYear() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var year = originalGetFullYear(this);
|
|
if (year < 0 && originalGetMonth(this) > 11) {
|
|
return year + 1;
|
|
}
|
|
return year;
|
|
},
|
|
getMonth: function getMonth() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var year = originalGetFullYear(this);
|
|
var month = originalGetMonth(this);
|
|
if (year < 0 && month > 11) {
|
|
return 0;
|
|
}
|
|
return month;
|
|
},
|
|
getDate: function getDate() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var year = originalGetFullYear(this);
|
|
var month = originalGetMonth(this);
|
|
var date = originalGetDate(this);
|
|
if (year < 0 && month > 11) {
|
|
if (month === 12) {
|
|
return date;
|
|
}
|
|
var days = daysInMonth(0, year + 1);
|
|
return (days - date) + 1;
|
|
}
|
|
return date;
|
|
},
|
|
getUTCFullYear: function getUTCFullYear() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var year = originalGetUTCFullYear(this);
|
|
if (year < 0 && originalGetUTCMonth(this) > 11) {
|
|
return year + 1;
|
|
}
|
|
return year;
|
|
},
|
|
getUTCMonth: function getUTCMonth() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var year = originalGetUTCFullYear(this);
|
|
var month = originalGetUTCMonth(this);
|
|
if (year < 0 && month > 11) {
|
|
return 0;
|
|
}
|
|
return month;
|
|
},
|
|
getUTCDate: function getUTCDate() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var year = originalGetUTCFullYear(this);
|
|
var month = originalGetUTCMonth(this);
|
|
var date = originalGetUTCDate(this);
|
|
if (year < 0 && month > 11) {
|
|
if (month === 12) {
|
|
return date;
|
|
}
|
|
var days = daysInMonth(0, year + 1);
|
|
return (days - date) + 1;
|
|
}
|
|
return date;
|
|
}
|
|
}, hasNegativeMonthYearBug);
|
|
|
|
defineProperties(Date.prototype, {
|
|
toUTCString: function toUTCString() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var day = originalGetUTCDay(this);
|
|
var date = originalGetUTCDate(this);
|
|
var month = originalGetUTCMonth(this);
|
|
var year = originalGetUTCFullYear(this);
|
|
var hour = originalGetUTCHours(this);
|
|
var minute = originalGetUTCMinutes(this);
|
|
var second = originalGetUTCSeconds(this);
|
|
return dayName[day] + ', ' +
|
|
(date < 10 ? '0' + date : date) + ' ' +
|
|
monthName[month] + ' ' +
|
|
year + ' ' +
|
|
(hour < 10 ? '0' + hour : hour) + ':' +
|
|
(minute < 10 ? '0' + minute : minute) + ':' +
|
|
(second < 10 ? '0' + second : second) + ' GMT';
|
|
}
|
|
}, hasNegativeMonthYearBug || hasToUTCStringFormatBug);
|
|
|
|
// Opera 12 has `,`
|
|
defineProperties(Date.prototype, {
|
|
toDateString: function toDateString() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var day = this.getDay();
|
|
var date = this.getDate();
|
|
var month = this.getMonth();
|
|
var year = this.getFullYear();
|
|
return dayName[day] + ' ' +
|
|
monthName[month] + ' ' +
|
|
(date < 10 ? '0' + date : date) + ' ' +
|
|
year;
|
|
}
|
|
}, hasNegativeMonthYearBug || hasToDateStringFormatBug);
|
|
|
|
// can't use defineProperties here because of toString enumeration issue in IE <= 8
|
|
if (hasNegativeMonthYearBug || hasToStringFormatBug) {
|
|
Date.prototype.toString = function toString() {
|
|
if (!this || !(this instanceof Date)) {
|
|
throw new TypeError('this is not a Date object.');
|
|
}
|
|
var day = this.getDay();
|
|
var date = this.getDate();
|
|
var month = this.getMonth();
|
|
var year = this.getFullYear();
|
|
var hour = this.getHours();
|
|
var minute = this.getMinutes();
|
|
var second = this.getSeconds();
|
|
var timezoneOffset = this.getTimezoneOffset();
|
|
var hoursOffset = Math.floor(Math.abs(timezoneOffset) / 60);
|
|
var minutesOffset = Math.floor(Math.abs(timezoneOffset) % 60);
|
|
return dayName[day] + ' ' +
|
|
monthName[month] + ' ' +
|
|
(date < 10 ? '0' + date : date) + ' ' +
|
|
year + ' ' +
|
|
(hour < 10 ? '0' + hour : hour) + ':' +
|
|
(minute < 10 ? '0' + minute : minute) + ':' +
|
|
(second < 10 ? '0' + second : second) + ' GMT' +
|
|
(timezoneOffset > 0 ? '-' : '+') +
|
|
(hoursOffset < 10 ? '0' + hoursOffset : hoursOffset) +
|
|
(minutesOffset < 10 ? '0' + minutesOffset : minutesOffset);
|
|
};
|
|
if (supportsDescriptors) {
|
|
$Object.defineProperty(Date.prototype, 'toString', {
|
|
configurable: true,
|
|
enumerable: false,
|
|
writable: true
|
|
});
|
|
}
|
|
}
|
|
|
|
// ES5 15.9.5.43
|
|
// http://es5.github.com/#x15.9.5.43
|
|
// This function returns a String value represent the instance in time
|
|
// represented by this Date object. The format of the String is the Date Time
|
|
// string format defined in 15.9.1.15. All fields are present in the String.
|
|
// The time zone is always UTC, denoted by the suffix Z. If the time value of
|
|
// this object is not a finite Number a RangeError exception is thrown.
|
|
var negativeDate = -62198755200000;
|
|
var negativeYearString = '-000001';
|
|
var hasNegativeDateBug = Date.prototype.toISOString && new Date(negativeDate).toISOString().indexOf(negativeYearString) === -1;
|
|
var hasSafari51DateBug = Date.prototype.toISOString && new Date(-1).toISOString() !== '1969-12-31T23:59:59.999Z';
|
|
|
|
var getTime = call.bind(Date.prototype.getTime);
|
|
|
|
defineProperties(Date.prototype, {
|
|
toISOString: function toISOString() {
|
|
if (!isFinite(this) || !isFinite(getTime(this))) {
|
|
// Adope Photoshop requires the second check.
|
|
throw new RangeError('Date.prototype.toISOString called on non-finite value.');
|
|
}
|
|
|
|
var year = originalGetUTCFullYear(this);
|
|
|
|
var month = originalGetUTCMonth(this);
|
|
// see https://github.com/es-shims/es5-shim/issues/111
|
|
year += Math.floor(month / 12);
|
|
month = (month % 12 + 12) % 12;
|
|
|
|
// the date time string format is specified in 15.9.1.15.
|
|
var result = [month + 1, originalGetUTCDate(this), originalGetUTCHours(this), originalGetUTCMinutes(this), originalGetUTCSeconds(this)];
|
|
year = (
|
|
(year < 0 ? '-' : (year > 9999 ? '+' : '')) +
|
|
strSlice('00000' + Math.abs(year), (0 <= year && year <= 9999) ? -4 : -6)
|
|
);
|
|
|
|
for (var i = 0; i < result.length; ++i) {
|
|
// pad months, days, hours, minutes, and seconds to have two digits.
|
|
result[i] = strSlice('00' + result[i], -2);
|
|
}
|
|
// pad milliseconds to have three digits.
|
|
return (
|
|
year + '-' + arraySlice(result, 0, 2).join('-') +
|
|
'T' + arraySlice(result, 2).join(':') + '.' +
|
|
strSlice('000' + originalGetUTCMilliseconds(this), -3) + 'Z'
|
|
);
|
|
}
|
|
}, hasNegativeDateBug || hasSafari51DateBug);
|
|
|
|
// ES5 15.9.5.44
|
|
// http://es5.github.com/#x15.9.5.44
|
|
// This function provides a String representation of a Date object for use by
|
|
// JSON.stringify (15.12.3).
|
|
var dateToJSONIsSupported = (function () {
|
|
try {
|
|
return Date.prototype.toJSON &&
|
|
new Date(NaN).toJSON() === null &&
|
|
new Date(negativeDate).toJSON().indexOf(negativeYearString) !== -1 &&
|
|
Date.prototype.toJSON.call({ // generic
|
|
toISOString: function () { return true; }
|
|
});
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}());
|
|
if (!dateToJSONIsSupported) {
|
|
Date.prototype.toJSON = function toJSON(key) {
|
|
// When the toJSON method is called with argument key, the following
|
|
// steps are taken:
|
|
|
|
// 1. Let O be the result of calling ToObject, giving it the this
|
|
// value as its argument.
|
|
// 2. Let tv be ES.ToPrimitive(O, hint Number).
|
|
var O = $Object(this);
|
|
var tv = ES.ToPrimitive(O);
|
|
// 3. If tv is a Number and is not finite, return null.
|
|
if (typeof tv === 'number' && !isFinite(tv)) {
|
|
return null;
|
|
}
|
|
// 4. Let toISO be the result of calling the [[Get]] internal method of
|
|
// O with argument "toISOString".
|
|
var toISO = O.toISOString;
|
|
// 5. If IsCallable(toISO) is false, throw a TypeError exception.
|
|
if (!isCallable(toISO)) {
|
|
throw new TypeError('toISOString property is not callable');
|
|
}
|
|
// 6. Return the result of calling the [[Call]] internal method of
|
|
// toISO with O as the this value and an empty argument list.
|
|
return toISO.call(O);
|
|
|
|
// NOTE 1 The argument is ignored.
|
|
|
|
// NOTE 2 The toJSON function is intentionally generic; it does not
|
|
// require that its this value be a Date object. Therefore, it can be
|
|
// transferred to other kinds of objects for use as a method. However,
|
|
// it does require that any such object have a toISOString method. An
|
|
// object is free to use the argument key to filter its
|
|
// stringification.
|
|
};
|
|
}
|
|
|
|
// ES5 15.9.4.2
|
|
// http://es5.github.com/#x15.9.4.2
|
|
// based on work shared by Daniel Friesen (dantman)
|
|
// http://gist.github.com/303249
|
|
var supportsExtendedYears = Date.parse('+033658-09-27T01:46:40.000Z') === 1e15;
|
|
var acceptsInvalidDates = !isNaN(Date.parse('2012-04-04T24:00:00.500Z')) || !isNaN(Date.parse('2012-11-31T23:59:59.000Z')) || !isNaN(Date.parse('2012-12-31T23:59:60.000Z'));
|
|
var doesNotParseY2KNewYear = isNaN(Date.parse('2000-01-01T00:00:00.000Z'));
|
|
if (doesNotParseY2KNewYear || acceptsInvalidDates || !supportsExtendedYears) {
|
|
// XXX global assignment won't work in embeddings that use
|
|
// an alternate object for the context.
|
|
/* global Date: true */
|
|
/* eslint-disable no-undef */
|
|
var maxSafeUnsigned32Bit = Math.pow(2, 31) - 1;
|
|
var hasSafariSignedIntBug = isActualNaN(new Date(1970, 0, 1, 0, 0, 0, maxSafeUnsigned32Bit + 1).getTime());
|
|
/* eslint-disable no-implicit-globals */
|
|
Date = (function (NativeDate) {
|
|
/* eslint-enable no-implicit-globals */
|
|
/* eslint-enable no-undef */
|
|
// Date.length === 7
|
|
var DateShim = function Date(Y, M, D, h, m, s, ms) {
|
|
var length = arguments.length;
|
|
var date;
|
|
if (this instanceof NativeDate) {
|
|
var seconds = s;
|
|
var millis = ms;
|
|
if (hasSafariSignedIntBug && length >= 7 && ms > maxSafeUnsigned32Bit) {
|
|
// work around a Safari 8/9 bug where it treats the seconds as signed
|
|
var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit;
|
|
var sToShift = Math.floor(msToShift / 1e3);
|
|
seconds += sToShift;
|
|
millis -= sToShift * 1e3;
|
|
}
|
|
date = length === 1 && $String(Y) === Y ? // isString(Y)
|
|
// We explicitly pass it through parse:
|
|
new NativeDate(DateShim.parse(Y)) :
|
|
// We have to manually make calls depending on argument
|
|
// length here
|
|
length >= 7 ? new NativeDate(Y, M, D, h, m, seconds, millis) :
|
|
length >= 6 ? new NativeDate(Y, M, D, h, m, seconds) :
|
|
length >= 5 ? new NativeDate(Y, M, D, h, m) :
|
|
length >= 4 ? new NativeDate(Y, M, D, h) :
|
|
length >= 3 ? new NativeDate(Y, M, D) :
|
|
length >= 2 ? new NativeDate(Y, M) :
|
|
length >= 1 ? new NativeDate(Y instanceof NativeDate ? +Y : Y) :
|
|
new NativeDate();
|
|
} else {
|
|
date = NativeDate.apply(this, arguments);
|
|
}
|
|
if (!isPrimitive(date)) {
|
|
// Prevent mixups with unfixed Date object
|
|
defineProperties(date, { constructor: DateShim }, true);
|
|
}
|
|
return date;
|
|
};
|
|
|
|
// 15.9.1.15 Date Time String Format.
|
|
var isoDateExpression = new RegExp('^' +
|
|
'(\\d{4}|[+-]\\d{6})' + // four-digit year capture or sign +
|
|
// 6-digit extended year
|
|
'(?:-(\\d{2})' + // optional month capture
|
|
'(?:-(\\d{2})' + // optional day capture
|
|
'(?:' + // capture hours:minutes:seconds.milliseconds
|
|
'T(\\d{2})' + // hours capture
|
|
':(\\d{2})' + // minutes capture
|
|
'(?:' + // optional :seconds.milliseconds
|
|
':(\\d{2})' + // seconds capture
|
|
'(?:(\\.\\d{1,}))?' + // milliseconds capture
|
|
')?' +
|
|
'(' + // capture UTC offset component
|
|
'Z|' + // UTC capture
|
|
'(?:' + // offset specifier +/-hours:minutes
|
|
'([-+])' + // sign capture
|
|
'(\\d{2})' + // hours offset capture
|
|
':(\\d{2})' + // minutes offset capture
|
|
')' +
|
|
')?)?)?)?' +
|
|
'$');
|
|
|
|
var months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365];
|
|
|
|
var dayFromMonth = function dayFromMonth(year, month) {
|
|
var t = month > 1 ? 1 : 0;
|
|
return (
|
|
months[month] +
|
|
Math.floor((year - 1969 + t) / 4) -
|
|
Math.floor((year - 1901 + t) / 100) +
|
|
Math.floor((year - 1601 + t) / 400) +
|
|
365 * (year - 1970)
|
|
);
|
|
};
|
|
|
|
var toUTC = function toUTC(t) {
|
|
var s = 0;
|
|
var ms = t;
|
|
if (hasSafariSignedIntBug && ms > maxSafeUnsigned32Bit) {
|
|
// work around a Safari 8/9 bug where it treats the seconds as signed
|
|
var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit;
|
|
var sToShift = Math.floor(msToShift / 1e3);
|
|
s += sToShift;
|
|
ms -= sToShift * 1e3;
|
|
}
|
|
return $Number(new NativeDate(1970, 0, 1, 0, 0, s, ms));
|
|
};
|
|
|
|
// Copy any custom methods a 3rd party library may have added
|
|
for (var key in NativeDate) {
|
|
if (owns(NativeDate, key)) {
|
|
DateShim[key] = NativeDate[key];
|
|
}
|
|
}
|
|
|
|
// Copy "native" methods explicitly; they may be non-enumerable
|
|
defineProperties(DateShim, {
|
|
now: NativeDate.now,
|
|
UTC: NativeDate.UTC
|
|
}, true);
|
|
DateShim.prototype = NativeDate.prototype;
|
|
defineProperties(DateShim.prototype, {
|
|
constructor: DateShim
|
|
}, true);
|
|
|
|
// Upgrade Date.parse to handle simplified ISO 8601 strings
|
|
var parseShim = function parse(string) {
|
|
var match = isoDateExpression.exec(string);
|
|
if (match) {
|
|
// parse months, days, hours, minutes, seconds, and milliseconds
|
|
// provide default values if necessary
|
|
// parse the UTC offset component
|
|
var year = $Number(match[1]),
|
|
month = $Number(match[2] || 1) - 1,
|
|
day = $Number(match[3] || 1) - 1,
|
|
hour = $Number(match[4] || 0),
|
|
minute = $Number(match[5] || 0),
|
|
second = $Number(match[6] || 0),
|
|
millisecond = Math.floor($Number(match[7] || 0) * 1000),
|
|
// When time zone is missed, local offset should be used
|
|
// (ES 5.1 bug)
|
|
// see https://bugs.ecmascript.org/show_bug.cgi?id=112
|
|
isLocalTime = Boolean(match[4] && !match[8]),
|
|
signOffset = match[9] === '-' ? 1 : -1,
|
|
hourOffset = $Number(match[10] || 0),
|
|
minuteOffset = $Number(match[11] || 0),
|
|
result;
|
|
var hasMinutesOrSecondsOrMilliseconds = minute > 0 || second > 0 || millisecond > 0;
|
|
if (
|
|
hour < (hasMinutesOrSecondsOrMilliseconds ? 24 : 25) &&
|
|
minute < 60 && second < 60 && millisecond < 1000 &&
|
|
month > -1 && month < 12 && hourOffset < 24 &&
|
|
minuteOffset < 60 && // detect invalid offsets
|
|
day > -1 &&
|
|
day < (dayFromMonth(year, month + 1) - dayFromMonth(year, month))
|
|
) {
|
|
result = (
|
|
(dayFromMonth(year, month) + day) * 24 +
|
|
hour +
|
|
hourOffset * signOffset
|
|
) * 60;
|
|
result = (
|
|
(result + minute + minuteOffset * signOffset) * 60 +
|
|
second
|
|
) * 1000 + millisecond;
|
|
if (isLocalTime) {
|
|
result = toUTC(result);
|
|
}
|
|
if (-8.64e15 <= result && result <= 8.64e15) {
|
|
return result;
|
|
}
|
|
}
|
|
return NaN;
|
|
}
|
|
return NativeDate.parse.apply(this, arguments);
|
|
};
|
|
defineProperties(DateShim, { parse: parseShim });
|
|
|
|
return DateShim;
|
|
}(Date));
|
|
/* global Date: false */
|
|
}
|
|
|
|
// ES5 15.9.4.4
|
|
// http://es5.github.com/#x15.9.4.4
|
|
if (!Date.now) {
|
|
Date.now = function now() {
|
|
return new Date().getTime();
|
|
};
|
|
}
|
|
|
|
//
|
|
// Number
|
|
// ======
|
|
//
|
|
|
|
// ES5.1 15.7.4.5
|
|
// http://es5.github.com/#x15.7.4.5
|
|
var hasToFixedBugs = NumberPrototype.toFixed && (
|
|
(0.00008).toFixed(3) !== '0.000' ||
|
|
(0.9).toFixed(0) !== '1' ||
|
|
(1.255).toFixed(2) !== '1.25' ||
|
|
(1000000000000000128).toFixed(0) !== '1000000000000000128'
|
|
);
|
|
|
|
var toFixedHelpers = {
|
|
base: 1e7,
|
|
size: 6,
|
|
data: [0, 0, 0, 0, 0, 0],
|
|
multiply: function multiply(n, c) {
|
|
var i = -1;
|
|
var c2 = c;
|
|
while (++i < toFixedHelpers.size) {
|
|
c2 += n * toFixedHelpers.data[i];
|
|
toFixedHelpers.data[i] = c2 % toFixedHelpers.base;
|
|
c2 = Math.floor(c2 / toFixedHelpers.base);
|
|
}
|
|
},
|
|
divide: function divide(n) {
|
|
var i = toFixedHelpers.size;
|
|
var c = 0;
|
|
while (--i >= 0) {
|
|
c += toFixedHelpers.data[i];
|
|
toFixedHelpers.data[i] = Math.floor(c / n);
|
|
c = (c % n) * toFixedHelpers.base;
|
|
}
|
|
},
|
|
numToString: function numToString() {
|
|
var i = toFixedHelpers.size;
|
|
var s = '';
|
|
while (--i >= 0) {
|
|
if (s !== '' || i === 0 || toFixedHelpers.data[i] !== 0) {
|
|
var t = $String(toFixedHelpers.data[i]);
|
|
if (s === '') {
|
|
s = t;
|
|
} else {
|
|
s += strSlice('0000000', 0, 7 - t.length) + t;
|
|
}
|
|
}
|
|
}
|
|
return s;
|
|
},
|
|
pow: function pow(x, n, acc) {
|
|
return (n === 0 ? acc : (n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc)));
|
|
},
|
|
log: function log(x) {
|
|
var n = 0;
|
|
var x2 = x;
|
|
while (x2 >= 4096) {
|
|
n += 12;
|
|
x2 /= 4096;
|
|
}
|
|
while (x2 >= 2) {
|
|
n += 1;
|
|
x2 /= 2;
|
|
}
|
|
return n;
|
|
}
|
|
};
|
|
|
|
var toFixedShim = function toFixed(fractionDigits) {
|
|
var f, x, s, m, e, z, j, k;
|
|
|
|
// Test for NaN and round fractionDigits down
|
|
f = $Number(fractionDigits);
|
|
f = isActualNaN(f) ? 0 : Math.floor(f);
|
|
|
|
if (f < 0 || f > 20) {
|
|
throw new RangeError('Number.toFixed called with invalid number of decimals');
|
|
}
|
|
|
|
x = $Number(this);
|
|
|
|
if (isActualNaN(x)) {
|
|
return 'NaN';
|
|
}
|
|
|
|
// If it is too big or small, return the string value of the number
|
|
if (x <= -1e21 || x >= 1e21) {
|
|
return $String(x);
|
|
}
|
|
|
|
s = '';
|
|
|
|
if (x < 0) {
|
|
s = '-';
|
|
x = -x;
|
|
}
|
|
|
|
m = '0';
|
|
|
|
if (x > 1e-21) {
|
|
// 1e-21 < x < 1e21
|
|
// -70 < log2(x) < 70
|
|
e = toFixedHelpers.log(x * toFixedHelpers.pow(2, 69, 1)) - 69;
|
|
z = (e < 0 ? x * toFixedHelpers.pow(2, -e, 1) : x / toFixedHelpers.pow(2, e, 1));
|
|
z *= 0x10000000000000; // Math.pow(2, 52);
|
|
e = 52 - e;
|
|
|
|
// -18 < e < 122
|
|
// x = z / 2 ^ e
|
|
if (e > 0) {
|
|
toFixedHelpers.multiply(0, z);
|
|
j = f;
|
|
|
|
while (j >= 7) {
|
|
toFixedHelpers.multiply(1e7, 0);
|
|
j -= 7;
|
|
}
|
|
|
|
toFixedHelpers.multiply(toFixedHelpers.pow(10, j, 1), 0);
|
|
j = e - 1;
|
|
|
|
while (j >= 23) {
|
|
toFixedHelpers.divide(1 << 23);
|
|
j -= 23;
|
|
}
|
|
|
|
toFixedHelpers.divide(1 << j);
|
|
toFixedHelpers.multiply(1, 1);
|
|
toFixedHelpers.divide(2);
|
|
m = toFixedHelpers.numToString();
|
|
} else {
|
|
toFixedHelpers.multiply(0, z);
|
|
toFixedHelpers.multiply(1 << (-e), 0);
|
|
m = toFixedHelpers.numToString() + strSlice('0.00000000000000000000', 2, 2 + f);
|
|
}
|
|
}
|
|
|
|
if (f > 0) {
|
|
k = m.length;
|
|
|
|
if (k <= f) {
|
|
m = s + strSlice('0.0000000000000000000', 0, f - k + 2) + m;
|
|
} else {
|
|
m = s + strSlice(m, 0, k - f) + '.' + strSlice(m, k - f);
|
|
}
|
|
} else {
|
|
m = s + m;
|
|
}
|
|
|
|
return m;
|
|
};
|
|
defineProperties(NumberPrototype, { toFixed: toFixedShim }, hasToFixedBugs);
|
|
|
|
var hasToPrecisionUndefinedBug = (function () {
|
|
try {
|
|
return 1.0.toPrecision(undefined) === '1';
|
|
} catch (e) {
|
|
return true;
|
|
}
|
|
}());
|
|
var originalToPrecision = NumberPrototype.toPrecision;
|
|
defineProperties(NumberPrototype, {
|
|
toPrecision: function toPrecision(precision) {
|
|
return typeof precision === 'undefined' ? originalToPrecision.call(this) : originalToPrecision.call(this, precision);
|
|
}
|
|
}, hasToPrecisionUndefinedBug);
|
|
|
|
//
|
|
// String
|
|
// ======
|
|
//
|
|
|
|
// ES5 15.5.4.14
|
|
// http://es5.github.com/#x15.5.4.14
|
|
|
|
// [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers]
|
|
// Many browsers do not split properly with regular expressions or they
|
|
// do not perform the split correctly under obscure conditions.
|
|
// See http://blog.stevenlevithan.com/archives/cross-browser-split
|
|
// I've tested in many browsers and this seems to cover the deviant ones:
|
|
// 'ab'.split(/(?:ab)*/) should be ["", ""], not [""]
|
|
// '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""]
|
|
// 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not
|
|
// [undefined, "t", undefined, "e", ...]
|
|
// ''.split(/.?/) should be [], not [""]
|
|
// '.'.split(/()()/) should be ["."], not ["", "", "."]
|
|
|
|
if (
|
|
'ab'.split(/(?:ab)*/).length !== 2 ||
|
|
'.'.split(/(.?)(.?)/).length !== 4 ||
|
|
'tesst'.split(/(s)*/)[1] === 't' ||
|
|
'test'.split(/(?:)/, -1).length !== 4 ||
|
|
''.split(/.?/).length ||
|
|
'.'.split(/()()/).length > 1
|
|
) {
|
|
(function () {
|
|
var compliantExecNpcg = typeof (/()??/).exec('')[1] === 'undefined'; // NPCG: nonparticipating capturing group
|
|
var maxSafe32BitInt = Math.pow(2, 32) - 1;
|
|
|
|
StringPrototype.split = function (separator, limit) {
|
|
var string = String(this);
|
|
if (typeof separator === 'undefined' && limit === 0) {
|
|
return [];
|
|
}
|
|
|
|
// If `separator` is not a regex, use native split
|
|
if (!isRegex(separator)) {
|
|
return strSplit(this, separator, limit);
|
|
}
|
|
|
|
var output = [];
|
|
var flags = (separator.ignoreCase ? 'i' : '') +
|
|
(separator.multiline ? 'm' : '') +
|
|
(separator.unicode ? 'u' : '') + // in ES6
|
|
(separator.sticky ? 'y' : ''), // Firefox 3+ and ES6
|
|
lastLastIndex = 0,
|
|
// Make `global` and avoid `lastIndex` issues by working with a copy
|
|
separator2, match, lastIndex, lastLength;
|
|
var separatorCopy = new RegExp(separator.source, flags + 'g');
|
|
if (!compliantExecNpcg) {
|
|
// Doesn't need flags gy, but they don't hurt
|
|
separator2 = new RegExp('^' + separatorCopy.source + '$(?!\\s)', flags);
|
|
}
|
|
/* Values for `limit`, per the spec:
|
|
* If undefined: 4294967295 // maxSafe32BitInt
|
|
* If 0, Infinity, or NaN: 0
|
|
* If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
|
|
* If negative number: 4294967296 - Math.floor(Math.abs(limit))
|
|
* If other: Type-convert, then use the above rules
|
|
*/
|
|
var splitLimit = typeof limit === 'undefined' ? maxSafe32BitInt : ES.ToUint32(limit);
|
|
match = separatorCopy.exec(string);
|
|
while (match) {
|
|
// `separatorCopy.lastIndex` is not reliable cross-browser
|
|
lastIndex = match.index + match[0].length;
|
|
if (lastIndex > lastLastIndex) {
|
|
pushCall(output, strSlice(string, lastLastIndex, match.index));
|
|
// Fix browsers whose `exec` methods don't consistently return `undefined` for
|
|
// nonparticipating capturing groups
|
|
if (!compliantExecNpcg && match.length > 1) {
|
|
/* eslint-disable no-loop-func */
|
|
match[0].replace(separator2, function () {
|
|
for (var i = 1; i < arguments.length - 2; i++) {
|
|
if (typeof arguments[i] === 'undefined') {
|
|
match[i] = void 0;
|
|
}
|
|
}
|
|
});
|
|
/* eslint-enable no-loop-func */
|
|
}
|
|
if (match.length > 1 && match.index < string.length) {
|
|
array_push.apply(output, arraySlice(match, 1));
|
|
}
|
|
lastLength = match[0].length;
|
|
lastLastIndex = lastIndex;
|
|
if (output.length >= splitLimit) {
|
|
break;
|
|
}
|
|
}
|
|
if (separatorCopy.lastIndex === match.index) {
|
|
separatorCopy.lastIndex++; // Avoid an infinite loop
|
|
}
|
|
match = separatorCopy.exec(string);
|
|
}
|
|
if (lastLastIndex === string.length) {
|
|
if (lastLength || !separatorCopy.test('')) {
|
|
pushCall(output, '');
|
|
}
|
|
} else {
|
|
pushCall(output, strSlice(string, lastLastIndex));
|
|
}
|
|
return output.length > splitLimit ? arraySlice(output, 0, splitLimit) : output;
|
|
};
|
|
}());
|
|
|
|
// [bugfix, chrome]
|
|
// If separator is undefined, then the result array contains just one String,
|
|
// which is the this value (converted to a String). If limit is not undefined,
|
|
// then the output array is truncated so that it contains no more than limit
|
|
// elements.
|
|
// "0".split(undefined, 0) -> []
|
|
} else if ('0'.split(void 0, 0).length) {
|
|
StringPrototype.split = function split(separator, limit) {
|
|
if (typeof separator === 'undefined' && limit === 0) {
|
|
return [];
|
|
}
|
|
return strSplit(this, separator, limit);
|
|
};
|
|
}
|
|
|
|
var str_replace = StringPrototype.replace;
|
|
var replaceReportsGroupsCorrectly = (function () {
|
|
var groups = [];
|
|
'x'.replace(/x(.)?/g, function (match, group) {
|
|
pushCall(groups, group);
|
|
});
|
|
return groups.length === 1 && typeof groups[0] === 'undefined';
|
|
}());
|
|
|
|
if (!replaceReportsGroupsCorrectly) {
|
|
StringPrototype.replace = function replace(searchValue, replaceValue) {
|
|
var isFn = isCallable(replaceValue);
|
|
var hasCapturingGroups = isRegex(searchValue) && (/\)[*?]/).test(searchValue.source);
|
|
if (!isFn || !hasCapturingGroups) {
|
|
return str_replace.call(this, searchValue, replaceValue);
|
|
} else {
|
|
var wrappedReplaceValue = function (match) {
|
|
var length = arguments.length;
|
|
var originalLastIndex = searchValue.lastIndex;
|
|
searchValue.lastIndex = 0;
|
|
var args = searchValue.exec(match) || [];
|
|
searchValue.lastIndex = originalLastIndex;
|
|
pushCall(args, arguments[length - 2], arguments[length - 1]);
|
|
return replaceValue.apply(this, args);
|
|
};
|
|
return str_replace.call(this, searchValue, wrappedReplaceValue);
|
|
}
|
|
};
|
|
}
|
|
|
|
// ECMA-262, 3rd B.2.3
|
|
// Not an ECMAScript standard, although ECMAScript 3rd Edition has a
|
|
// non-normative section suggesting uniform semantics and it should be
|
|
// normalized across all browsers
|
|
// [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE
|
|
var string_substr = StringPrototype.substr;
|
|
var hasNegativeSubstrBug = ''.substr && '0b'.substr(-1) !== 'b';
|
|
defineProperties(StringPrototype, {
|
|
substr: function substr(start, length) {
|
|
var normalizedStart = start;
|
|
if (start < 0) {
|
|
normalizedStart = max(this.length + start, 0);
|
|
}
|
|
return string_substr.call(this, normalizedStart, length);
|
|
}
|
|
}, hasNegativeSubstrBug);
|
|
|
|
// ES5 15.5.4.20
|
|
// whitespace from: http://es5.github.io/#x15.5.4.20
|
|
var ws = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
|
|
'\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028' +
|
|
'\u2029\uFEFF';
|
|
var zeroWidth = '\u200b';
|
|
var wsRegexChars = '[' + ws + ']';
|
|
var trimBeginRegexp = new RegExp('^' + wsRegexChars + wsRegexChars + '*');
|
|
var trimEndRegexp = new RegExp(wsRegexChars + wsRegexChars + '*$');
|
|
var hasTrimWhitespaceBug = StringPrototype.trim && (ws.trim() || !zeroWidth.trim());
|
|
defineProperties(StringPrototype, {
|
|
// http://blog.stevenlevithan.com/archives/faster-trim-javascript
|
|
// http://perfectionkills.com/whitespace-deviations/
|
|
trim: function trim() {
|
|
if (typeof this === 'undefined' || this === null) {
|
|
throw new TypeError("can't convert " + this + ' to object');
|
|
}
|
|
return $String(this).replace(trimBeginRegexp, '').replace(trimEndRegexp, '');
|
|
}
|
|
}, hasTrimWhitespaceBug);
|
|
var trim = call.bind(String.prototype.trim);
|
|
|
|
var hasLastIndexBug = StringPrototype.lastIndexOf && 'abcあい'.lastIndexOf('あい', 2) !== -1;
|
|
defineProperties(StringPrototype, {
|
|
lastIndexOf: function lastIndexOf(searchString) {
|
|
if (typeof this === 'undefined' || this === null) {
|
|
throw new TypeError("can't convert " + this + ' to object');
|
|
}
|
|
var S = $String(this);
|
|
var searchStr = $String(searchString);
|
|
var numPos = arguments.length > 1 ? $Number(arguments[1]) : NaN;
|
|
var pos = isActualNaN(numPos) ? Infinity : ES.ToInteger(numPos);
|
|
var start = min(max(pos, 0), S.length);
|
|
var searchLen = searchStr.length;
|
|
var k = start + searchLen;
|
|
while (k > 0) {
|
|
k = max(0, k - searchLen);
|
|
var index = strIndexOf(strSlice(S, k, start + searchLen), searchStr);
|
|
if (index !== -1) {
|
|
return k + index;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
}, hasLastIndexBug);
|
|
|
|
var originalLastIndexOf = StringPrototype.lastIndexOf;
|
|
defineProperties(StringPrototype, {
|
|
lastIndexOf: function lastIndexOf(searchString) {
|
|
return originalLastIndexOf.apply(this, arguments);
|
|
}
|
|
}, StringPrototype.lastIndexOf.length !== 1);
|
|
|
|
// ES-5 15.1.2.2
|
|
/* eslint-disable radix */
|
|
if (parseInt(ws + '08') !== 8 || parseInt(ws + '0x16') !== 22) {
|
|
/* eslint-enable radix */
|
|
/* global parseInt: true */
|
|
parseInt = (function (origParseInt) {
|
|
var hexRegex = /^[\-+]?0[xX]/;
|
|
return function parseInt(str, radix) {
|
|
var string = trim(String(str));
|
|
var defaultedRadix = $Number(radix) || (hexRegex.test(string) ? 16 : 10);
|
|
return origParseInt(string, defaultedRadix);
|
|
};
|
|
}(parseInt));
|
|
}
|
|
|
|
// https://es5.github.io/#x15.1.2.3
|
|
if (1 / parseFloat('-0') !== -Infinity) {
|
|
/* global parseFloat: true */
|
|
parseFloat = (function (origParseFloat) {
|
|
return function parseFloat(string) {
|
|
var inputString = trim(String(string));
|
|
var result = origParseFloat(inputString);
|
|
return result === 0 && strSlice(inputString, 0, 1) === '-' ? -0 : result;
|
|
};
|
|
}(parseFloat));
|
|
}
|
|
|
|
if (String(new RangeError('test')) !== 'RangeError: test') {
|
|
var errorToStringShim = function toString() {
|
|
if (typeof this === 'undefined' || this === null) {
|
|
throw new TypeError("can't convert " + this + ' to object');
|
|
}
|
|
var name = this.name;
|
|
if (typeof name === 'undefined') {
|
|
name = 'Error';
|
|
} else if (typeof name !== 'string') {
|
|
name = $String(name);
|
|
}
|
|
var msg = this.message;
|
|
if (typeof msg === 'undefined') {
|
|
msg = '';
|
|
} else if (typeof msg !== 'string') {
|
|
msg = $String(msg);
|
|
}
|
|
if (!name) {
|
|
return msg;
|
|
}
|
|
if (!msg) {
|
|
return name;
|
|
}
|
|
return name + ': ' + msg;
|
|
};
|
|
// can't use defineProperties here because of toString enumeration issue in IE <= 8
|
|
Error.prototype.toString = errorToStringShim;
|
|
}
|
|
|
|
if (supportsDescriptors) {
|
|
var ensureNonEnumerable = function (obj, prop) {
|
|
if (isEnum(obj, prop)) {
|
|
var desc = Object.getOwnPropertyDescriptor(obj, prop);
|
|
if (desc.configurable) {
|
|
desc.enumerable = false;
|
|
Object.defineProperty(obj, prop, desc);
|
|
}
|
|
}
|
|
};
|
|
ensureNonEnumerable(Error.prototype, 'message');
|
|
if (Error.prototype.message !== '') {
|
|
Error.prototype.message = '';
|
|
}
|
|
ensureNonEnumerable(Error.prototype, 'name');
|
|
}
|
|
|
|
if (String(/a/mig) !== '/a/gim') {
|
|
var regexToString = function toString() {
|
|
var str = '/' + this.source + '/';
|
|
if (this.global) {
|
|
str += 'g';
|
|
}
|
|
if (this.ignoreCase) {
|
|
str += 'i';
|
|
}
|
|
if (this.multiline) {
|
|
str += 'm';
|
|
}
|
|
return str;
|
|
};
|
|
// can't use defineProperties here because of toString enumeration issue in IE <= 8
|
|
RegExp.prototype.toString = regexToString;
|
|
}
|
|
}));
|